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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 15 January 2026

Today Tonight and Friday.

Wind north 20 knots backing to northwest 15 near noon then increasing to northwest 20 early this evening. Wind increasing to northwest 25 near midnight then diminishing to northwest 15 early Friday morning. Wind diminishing to variable 10 near noon Friday then increasing to south 15 Friday evening.

Snow changing to scattered flurries this afternoon and ending overnight. Flurries Friday evening. Visibility 1 mile or less in precipitation.

Risk of freezing spray late this morning. Risk of freezing spray tonight and Friday morning.

Waves

Issued 10:30 AM EST 15 January 2026
Today Tonight and Friday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 this afternoon then building to 1 to 1.5 this evening. Waves subsiding to 0.5 to 1 Friday afternoon.

Extended Forecast

Issued 03:00 AM EST 15 January 2026
Saturday Wind southwest 15 knots increasing to southwest 20 in the afternoon.
Sunday Wind southwest 25 knots.
Monday Wind southwest 25 knots increasing to southwest 30.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 15 January 2026 Today Tonight and Friday At 10:30 a.m. EST today low 995 mb located over southeastern Quebec.
By 10:30 a.m. EST Friday low 980 mb located over northern Nova
Scotia.

At 10:30 a.m. EST today ridge located over Lake Superior.
By 10:30 a.m. EST Friday ridge located on a line north-south over
northeastern Ontario.

At 10:30 a.m. EST today trough located on a line north-south over
northwestern Ontario.
By 10:30 a.m. EST Friday trough located on a line north-south over
northwestern Michigan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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